check for null values in rpc args and handle appropriately

1 files changed, 3 insertions, 3 deletions

diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index b878624df8..185bc7fd3d 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -137,7 +137,7 @@ UniValue getrawtransaction(const JSONRPCRequest& request)
 
     // Accept either a bool (true) or a num (>=1) to indicate verbose output.
     bool fVerbose = false;
-    if (request.params.size() > 1) {
+    if (!request.params[1].isNull()) {
         if (request.params[1].isNum()) {
             if (request.params[1].get_int() != 0) {
                 fVerbose = true;
@@ -211,7 +211,7 @@ UniValue gettxoutproof(const JSONRPCRequest& request)
     CBlockIndex* pblockindex = NULL;
 
     uint256 hashBlock;
-    if (request.params.size() > 1)
+    if (!request.params[1].isNull())
     {
         hashBlock = uint256S(request.params[1].get_str());
         if (!mapBlockIndex.count(hashBlock))
@@ -412,7 +412,7 @@ UniValue createrawtransaction(const JSONRPCRequest& request)
         }
     }
 
-    if (request.params.size() > 3 && rbfOptIn != SignalsOptInRBF(rawTx)) {
+    if (!request.params[3].isNull() && rbfOptIn != SignalsOptInRBF(rawTx)) {
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter combination: Sequence number(s) contradict replaceable option");
     }